Switching levothyroxine from the tablet to the oral solution formulation corrects the impaired absorption of levothyroxine induced by proton-pump inhibitors
Abstract
CONTEXT: Proton-pump inhibitors (PPIs) impair tablet levothyroxine (LT4) intestinal absorption by increasing the gastric pH and decreasing LT4 dissolution in the stomach. OBJECTIVE: The purpose of this study was to verify whether a liquid formulation of LT4 would correct LT4 malabsorption induced by PPIs. DESIGN: This was a prospective observational cohort study. The study was conducted from 2012 to 2013, and the mean duration of the follow-up was 23.7 ± 11.9 weeks. SETTING: The study was conducted in a tertiary university hospital outpatients clinic. PATIENTS: Upon informed consent, we recruited 24 consecutive adult patients (18 women and 6 men), who took LT4 for replacement (n = 14) or suppressive purposes (n = 10) and who had absorption of tablet LT4 impaired by PPIs. INTERVENTION: The 24 patients were switched from the tablet to the oral solution LT4 at the same daily dose. MAIN OUTCOME MEASURES: Significantly lower mean TSH levels were seen with the oral solution than with the tablet as were significantly greater rates of serum TSH less than or equal to the specified cutoff values (replacement [REP] group) or ≤ 0.10 mU/L (suppressive [SUP] group) with the oral solution than with the tablet. RESULTS: Serum TSH was lower with the oral solution than with the tablet formulation (REP group, 1.7 ± 1.0 mU/L vs 5.4 ± 4.3, P < .0001; SUP group, 0.1 ± 0.3 mU/L vs 2.1 ± 2.7, P < .0001). In the REP group, the rate of TSH values of ≤ 4.12 or ≤ 2.5 mU/L was 29 of 30 (96.7%) or 24 of 30 (80.0%) postswitch but only 17 of 36 (47.2%) or 9 of 36 (25.0%) preswitch (P < .0001). In the SUP group, the rate of serum TSH values of ≤ 0.10 mU/L was 26 of 35 (74.3%) postswitch but 0 of 22 (0%) preswitch (P < .0001). CONCLUSIONS: These data demonstrate the continued absorption of liquid LT4 despite the increased gastric pH due to PPI therapy.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
In a prospective, pre-post study of 24 hypothyroid patients who took PPIs, with mean follow-up 23.7 weeks, TSH levels were significantly lower in the solution group than in the tablet group (1.7 ± 1.0 vs 5.4 ± 4.3 mU/L, P < .001).
“Vita et al conducted a prospective, pre–post study of 24 hypothyroid patients who took PPIs (197). The mean duration of follow-up was 23.7 weeks. TSH levels were significantly lower in the solution group than in the tablet group (1.7 ± 1.0 vs 5.4 ± 4.3 mU/L, P < .001).”
From Levothyroxine: conventional and novel drug delivery formulations. (2023) · cites this paper as [197]
Cites
Cooper, D. S., Doherty, G. M., Haugen, B. R., Kloos, R. T., Lee, S. L., Mandel, S. J., Mazzaferri, E. L., McIver, B., Pacini, F., Schlumberger, M., et al. (2009) · Thyroid · doi:10.1089/thy.2009.0110 · Cited by 6,707 · see citing works
Garber, J. R., Cobin, R. H., Gharib, H., Hennessey, J. V., Klein, I., Mechanick, J. I., Pessah-Pollack, R., Singer, P. A., & Woeber, K. A. (2012) · Endocrine Practice · doi:10.4158/ep12280.gl · Cited by 1,567 · see citing works
Garber, J. R., Cobin, R. H., Gharib, H., Hennessey, J. V., Klein, I., Mechanick, J. I., Pessah-Pollack, R., Singer, P. A., & Woeber for the American Association, K. A. (2012) · Thyroid · doi:10.1089/thy.2012.0205 · Cited by 1,053 · see citing works
Pharmacology of proton pump inhibitors
Shin, J. M., & Sachs, G. M. (2008) · Current Gastroenterology Reports · doi:10.1007/s11894-008-0098-4 · Cited by 544 · see citing works
Thyroxine in Goiter, <i>Helicobacter pylori</i> Infection, and Chronic Gastritis
Centanni, M., Gargano, L., Canettieri, G., Viceconti, N., Franchi, A., Fave, G. D., & Annibale, B. (2006) · New England Journal of Medicine · doi:10.1056/nejmoa043903 · Cited by 329 · see citing works
A systematic review of drug absorption following bariatric surgery and its theoretical implications
Padwal, R. S., Brocks, D. R., & Sharma, A. M. (2009) · Obesity Reviews · doi:10.1111/j.1467-789x.2009.00614.x · Cited by 264 · see citing works
Timing of levothyroxine administration affects serum thyrotropin concentration
Bach-Huynh, T.-G., Nayak, B., Loh, J., Soldin, S., & Jonklaas, J. (2009) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2009-0860 · Cited by 198 · see citing works
Altered intestinal absorption of L-thyroxine caused by coffee
Benvenga, S., Bartolone, L., Pappalardo, M. A., Russo, A., Lapa, D., Giorgianni, G., Saraceno, G., & Trimarchi, F. (2008) · Thyroid · doi:10.1089/thy.2007.0222 · Cited by 191 · see citing works
Self-citationProton pump inhibitors: better acid suppression when taken before a meal than without a meal
Hatlebakk, J. G., Katz, P. O., Camacho-Lobato, L., & Castell, D. O. (2000) · Alimentary Pharmacology & Therapeutics · doi:10.1046/j.1365-2036.2000.00829.x · Cited by 169 · see citing works
A review of the pharmacokinetics of levothyroxine for the treatment of hypothyroidism
Colucci, P., Yue, C. S., Ducharme, M., Benvenga, S., Principal Scientist, L. A. C. I., Principal Scientist, L. A. C. I. A. P. C., President and CEO, L. A. C. I., & Professor of Medicine, D. (2010) · European Endocrinology · doi:10.17925/ee.2013.09.01.40 · Cited by 167 · see citing works
Self-citationDelayed Intestinal Absorption of Levothyroxine
BENVENGA, S., BARTOLONE, L., SQUADRITO, S., GIUDICE, F. L., & TRIMARCHI, F. (1995) · Thyroid · doi:10.1089/thy.1995.5.249 · Cited by 156 · see citing works
Self-citationAspects of the absorption of oral L-thyroxine in normal man
Wenzel, K. W., & Kirschsieper, H. E. (1977) · Metabolism · doi:10.1016/0026-0495(77)90121-4 · Cited by 151 · see citing works
Localization of human thyroxine absorption
HAYS, M. T. (1991) · Thyroid · doi:10.1089/thy.1991.1.241 · Cited by 138 · see citing works
Pabla, D., Akhlaghi, F., & Zia, H. (2009) · European Journal of Pharmaceutics and Biopharmaceutics · doi:10.1016/j.ejpb.2008.10.008 · Cited by 124 · see citing works
Atypical celiac disease as cause of increased need for thyroxine: a systematic study
Virili, C., Bassotti, G., Santaguida, M. G., Iuorio, R., Del Duca, S. C., Mercuri, V., Picarelli, A., Gargiulo, P., Gargano, L., & Centanni, M. (2012) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2011-1851 · Cited by 114 · see citing works
Sachmechi, I., Reich, D. M., Aninyei, M., Wibowo, F., Gupta, G., & Kim, P. J. (2007) · Endocrine Practice · doi:10.4158/ep.13.4.345 · Cited by 112 · see citing works
Benvenga, S., & Trimarchi, F. (2008) · Thyroid · doi:10.1089/thy.2007.0234 · Cited by 100 · see citing works
Self-citationVita, R., Saraceno, G., Trimarchi, F., & Benvenga, S. (2013) · Endocrine · doi:10.1007/s12020-012-9772-2 · Cited by 91 · see citing works
Yue, C., Scarsi, C., & Ducharme, M. P. (2012) · Arzneimittelforschung · doi:10.1055/s-0032-1329951 · Cited by 81 · see citing works
Effects of grapefruit juice on the absorption of levothyroxine
Lilja, J. J., Laitinen, K., & Neuvonen, P. J. (2005) · British Journal of Clinical Pharmacology · doi:10.1111/j.1365-2125.2005.02433.x · Cited by 74 · see citing works
Pirola, I., Formenti, A. M., Gandossi, E., Mittempergher, F., Casella, C., Agosti, B., & Cappelli, C. (2013) · Obesity Surgery · doi:10.1007/s11695-013-1015-y · Cited by 74 · see citing works
When thyroid hormone replacement is ineffective?
Benvenga, S. (2013) · Current Opinion in Endocrinology, Diabetes & Obesity · doi:10.1097/med.0000000000000003 · Cited by 74 · see citing works
Self-citationHuman Thyroxine Absorption: Age Effects and Methodological Analyses
HAYS, M. T., & NIELSEN, K. R. K. (1994) · Thyroid · doi:10.1089/thy.1994.4.55 · Cited by 67 · see citing works
Asik, M., Gunes, F., Binnetoglu, E., Eroglu, M., Bozkurt, N., Sen, H., Akbal, E., Bakar, C., Beyazit, Y., & Ukinc, K. (2014) · Endocrine · doi:10.1007/s12020-013-0065-1 · Cited by 58 · see citing works
Colucci, P., D'Angelo, P., Mautone, G., Scarsi, C., & Ducharme, M. P. (2011) · Therapeutic Drug Monitoring · doi:10.1097/ftd.0b013e318217b69f · Cited by 45 · see citing works
Update on subclinical hyperthyroidism.
Donangelo, I., & Braunstein, G. D. (2011) · PubMed · Cited by 44 · see citing works
Oral liquid levothyroxine treatment at breakfast: a mistake?
Cappelli, C., Pirola, I., Gandossi, E., Formenti, A., & Castellano, M. (2014) · European Journal of Endocrinology · doi:10.1530/eje-13-0693 · Cited by 41 · cited 3× · see citing works
“A facilitating role of ethanol has been proposed (26).”
BackgroundResultInfluentialBernareggi, A., Grata, E., Pinorini, M., & Conti, A. (2013) · Pharmaceutics · doi:10.3390/pharmaceutics5040621 · Cited by 30 · see citing works
Flagged first, then by citations
Cited by
Sorted by citations
Chaker, L., Bianco, A. C., Jonklaas, J., & Peeters, R. P. (2017) · The Lancet · doi:10.1016/s0140-6736(17)30703-1 · Cited by 1,159 · see citing works
Vinarov, Z., Abdallah, M., Agúndez, J. A. G., Allegaert, K., Basit, A. W., Braeckmans, M., Ceulemans, J., Corsetti, M., Griffin, B. T., Grimm, M. F., et al. (2021) · European Journal of Pharmaceutical Sciences · doi:10.1016/j.ejps.2021.105812 · Cited by 380 · see citing works
Foundations of gastrointestinal-based drug delivery and future developments
Chu, J. N., & Traverso, G. (2021) · Nature Reviews Gastroenterology & Hepatology · doi:10.1038/s41575-021-00539-w · Cited by 297 · see citing works
Burch, H. B. (2019) · New England Journal of Medicine · doi:10.1056/nejmra1901214 · Cited by 164 · see citing works
Gastrointestinal malabsorption of thyroxine
Virili, C., Antonelli, A., Santaguida, M. G., Benvenga, S., & Centanni, M. (2019) · Endocrine Reviews · doi:10.1210/er.2018-00168 · Cited by 164 · see citing works
Self-citationFactors Affecting Gastrointestinal Absorption of Levothyroxine: A Review
Skelin, M., Lucijanić, T., Amidžić Klarić, D., Rešić, A., Bakula, M., Liberati-Čizmek, A.-M., Gharib, H., & Rahelić, D. (2017) · Clinical Therapeutics · doi:10.1016/j.clinthera.2017.01.005 · Cited by 133 · see citing works
Hashimoto’s Thyroiditis and Autoimmune Gastritis
Cellini, M., Santaguida, M. G., Virili, C., Capriello, S., Brusca, N., Gargano, L., & Centanni, M. (2017) · Frontiers in Endocrinology · doi:10.3389/fendo.2017.00092 · Cited by 120 · see citing works
Thyroid hormone therapy for hypothyroidism
Biondi, B., & Cooper, D. S. (2019) · Endocrine · doi:10.1007/s12020-019-02023-7 · Cited by 110 · see citing works
The dynamic gastric environment and its impact on drug and formulation behaviour
Abeele, J. V. D., Rubbens, J., Brouwers, J., & Augustijns, P. (2016) · European Journal of Pharmaceutical Sciences · doi:10.1016/j.ejps.2016.08.060 · Cited by 102 · see citing works
Optimal thyroid hormone replacement
Jonklaas, J. (2022) · Endocrine Reviews · doi:10.1210/endrev/bnab031 · Cited by 89 · see citing works
Levothyroxine interactions with food and dietary supplements – a systematic review
Wiesner, A., Gajewska, D., & Paśko, P. (2021) · Pharmaceuticals · doi:10.3390/ph14030206 · Cited by 85 · see citing works
“Switching from the tablets to the oral liquid formulation has improved L ‐ T4 treatment efficacy in 24 patients ingesting PPI [19] and 11 ingesting other interfering drugs [20].”
BackgroundMcDermott, M. T. (2020) · Annals of Internal Medicine · doi:10.7326/aitc202007070 · Cited by 79 · see citing works
Liquid and softgel levothyroxine use in clinical practice: state of the art
Virili, C., Trimboli, P., Romanelli, F., & Centanni, M. (2016) · Endocrine · doi:10.1007/s12020-016-1035-1 · Cited by 71 · see citing works
Levothyroxine: conventional and novel drug delivery formulations.
Liu, H., Li, W., Zhang, W., Sun, S., & Chen, C. (2023) · Endocrine Reviews · doi:10.1210/endrev/bnac030 · Cited by 63 · see citing works
Potential proton pump inhibitor–related adverse effects
Perry, I. E., Sonu, I. S., Scarpignato, C., Akiyama, J., Hongo, M., & Vega, K. J. (2020) · Annals of the New York Academy of Sciences · doi:10.1111/nyas.14428 · Cited by 64 · see citing works
New Formulations of Levothyroxine in the Treatment of Hypothyroidism: Trick or Treat?
Nagy, E. V., Perros, P., Papini, E., Katkó, M., & Hegedűs, L. D. (2020) · Thyroid · doi:10.1089/thy.2020.0515 · Cited by 65 · see citing works
Virili, C., Giovanella, L., Fallahi, P., Antonelli, A., Santaguida, M. G., Centanni, M., & Trimboli, P. (2018) · Frontiers in Endocrinology · doi:10.3389/fendo.2018.00010 · Cited by 61 · see citing works
Use of Thyroid Hormones in Hypothyroid and Euthyroid Patients; the 2019 Italian Survey
Negro, R., Attanasio, R., Nagy, E. V., Papini, E., Perros, P., & Hegedüs, L. (2020) · European Thyroid Journal · doi:10.1159/000502057 · Cited by 52 · see citing works
Levothyroxine therapy in gastric malabsorptive disorders
Virili, C., Brusca, N., Capriello, S., & Centanni, M. (2021) · Frontiers in Endocrinology · doi:10.3389/fendo.2020.621616 · Cited by 52 · see citing works
Benvenga, S., Di Bari, F., & Vita, R. (2017) · Endocrine · doi:10.1007/s12020-017-1244-2 · Cited by 51 · see citing works
Self-citationFallahi, P., Ferrari, S. M., Ruffilli, I., Ragusa, F., Biricotti, M., Materazzi, G., Miccoli, P., & Antonelli, A. (2016) · Expert Opinion on Drug Delivery · doi:10.1080/17425247.2016.1227782 · Cited by 48 · see citing works
Biondi, B., Bartalena, L., Chiovato, L., Lenzi, A., Mariotti, S., Pacini, F., Pontecorvi, A., Vitti, P., & Trimarchi, F. (2016) · Journal of Endocrinological Investigation · doi:10.1007/s40618-016-0511-z · Cited by 44 · see citing works
Self-citationVita, R., Di Bari, F., & Benvenga, S. (2017) · Expert Opinion on Drug Delivery · doi:10.1080/17425247.2017.1290604 · Cited by 43 · see citing works
Self-citationLevothyrox® New and Old Formulations: Are they Switchable for Millions of Patients?
Concordet, D., Gandia, P., Montastruc, J., Bousquet‐mélou, A., Lees, P., Ferran, A. A., & Toutain, P. (2019) · Clinical Pharmacokinetics · doi:10.1007/s40262-019-00747-3 · Cited by 42 · see citing works
Novel thyroxine formulations: a further step toward precision medicine
Virili, C., Trimboli, P., & Centanni, M. (2019) · Endocrine · doi:10.1007/s12020-019-02049-x · Cited by 41 · see citing works
Precision Medicine in Autoimmune Thyroiditis and Hypothyroidism
Ferrari, S. M., Ragusa, F., Elia, G., Paparo, S. R., Mazzi, V., Baldini, E., Benvenga, S., Antonelli, A., & Fallahi, P. (2021) · Frontiers in Pharmacology · doi:10.3389/fphar.2021.750380 · Cited by 41 · see citing works
Self-citationRibichini, D., Fiorini, G., Repaci, A., Castelli, V., Gatta, L., Vaira, D., & Pasquali, R. (2017) · Endocrine · doi:10.1007/s12020-016-1167-3 · Cited by 35 · see citing works
Concurrent milk ingestion decreases absorption of levothyroxine
Chon, D. A., Reisman, T., Weinreb, J. E., Hershman, J. M., & Leung, A. M. (2018) · Thyroid · doi:10.1089/thy.2017.0428 · Cited by 34 · see citing works
Tanguay, M., Girard, J., Scarsi, C., Mautone, G., & Larouche, R. (2019) · Clinical Pharmacology in Drug Development · doi:10.1002/cpdd.608 · Cited by 33 · see citing works
Patients with lactose intolerance absorb liquid levothyroxine better than tablet levothyroxine
Fallahi, P., Ferrari, S. M., Marchi, S., De Bortoli, N., Ruffilli, I., & Antonelli, A. (2017) · Endocrine · doi:10.1007/s12020-016-1090-7 · Cited by 31 · see citing works
Antonelli, A., Elia, G., Ragusa, F., Paparo, S. R., Cavallini, G., Benvenga, S., Ferrari, S. M., & Fallahi, P. (2021) · Frontiers in Endocrinology · doi:10.3389/fendo.2021.633587 · Cited by 32 · see citing works
Self-citationLaurent, I., Tang, S., Astère, M., Wang, K. R., Deng, S., Xiao, L., & Li, Q. F. (2018) · Endocrine · doi:10.1007/s12020-018-1574-8 · Cited by 30 · see citing works
Timing of breakfast does not influence therapeutic efficacy of liquid levothyroxine formulation
Morelli, S., Reboldi, G., Moretti, S., Menicali, E., Avenia, N., & Puxeddu, E. (2016) · Endocrine · doi:10.1007/s12020-015-0788-2 · Cited by 30 · see citing works
Medications and Food Interfering with the Bioavailability of Levothyroxine: A Systematic Review
Liu, H., Lu, M., Hu, J., Fu, G., Feng, Q., Sun, S., & Chen, C. (2023) · Therapeutics and Clinical Risk Management · doi:10.2147/tcrm.s414460 · Cited by 29 · see citing works
Niculescu, D. (2020) · Acta Endocrinologica (Bucharest) · doi:10.4183/aeb.2020.462 · Cited by 28 · see citing works
Fallahi, P., Ferrari, S. M., & Antonelli, A. (2016) · Endocrine Practice · doi:10.4158/ep161545.or · Cited by 28 · see citing works
Increased requirement of replacement doses of levothyroxine caused by liver cirrhosis.
Benvenga, S., Capodicasa, G., Perelli, S., Ferrari, S. M., Fallahi, P., & Antonelli, A. (2018) · Frontiers in Endocrinology · doi:10.3389/fendo.2018.00150 · Cited by 25 · see citing works
Self-citationUpdate on the treatment of hypothyroidism
Jonklaas, J. (2015) · Current Opinion in Oncology · doi:10.1097/cco.0000000000000242 · Cited by 25 · see citing works
Levothyroxine liquid solution versus tablet form for replacement treatment in pregnant women
Cappelli, C., Negro, R., Pirola, I., Gandossi, E., Agosti, B., & Castellano, M. (2016) · Gynecological Endocrinology · doi:10.3109/09513590.2015.1113518 · Cited by 24 · see citing works
Fallahi, P., Ferrari, S. M., Materazzi, G., Ragusa, F., Ruffilli, I., Patrizio, A., Miccoli, P., & Antonelli, A. (2018) · Laryngoscope Investigative Otolaryngology · doi:10.1002/lio2.186 · Cited by 23 · see citing works
L-T4 Therapy in Enteric Malabsorptive Disorders
Fallahi, P., Ferrari, S. M., Elia, G., Ragusa, F., Paparo, S. R., & Antonelli, A. (2021) · Frontiers in Endocrinology · doi:10.3389/fendo.2021.626371 · Cited by 23 · see citing works
Cappelli, C., Pirola, I., Gandossi, E., Casella, C., Lombardi, D., Agosti, B., Marini, F., Delbarba, A., & Castellano, M. (2017) · International Journal of Endocrinology · doi:10.1155/2017/7053959 · Cited by 21 · see citing works
Guglielmi, V., Bellia, A., Bianchini, E., Medea, G., Cricelli, I., Sbraccia, P., Lauro, D., Cricelli, C. A., & Lapi, F. (2017) · Endocrine · doi:10.1007/s12020-017-1412-4 · Cited by 20 · see citing works
Levothyroxine sodium pentahydrate tablets – formulation considerations
Kaur, N., & Suryanarayanan, R. (2021) · Journal of Pharmaceutical Sciences · doi:10.1016/j.xphs.2021.08.006 · Cited by 19 · see citing works
Benvenga, S., Capodicasa, G., & Perelli, S. (2017) · Frontiers in Endocrinology · doi:10.3389/fendo.2017.00321 · Cited by 18 · see citing works
Self-citationBornikowska, K., Gietka-Czernel, M., Raczkiewicz, D., Glinicki, P., & Zgliczyński, W. (2021) · Journal of Clinical Medicine · doi:10.3390/jcm10225233 · Cited by 17 · see citing works
Benvenga, S. (2019) · Journal of Clinical & Translational Endocrinology · doi:10.1016/j.jcte.2019.100204 · Cited by 17 · see citing works
Self-citationPeirce, C., Ippolito, S., Lanas, A., Pesce, M., Pontieri, G., Arpaia, D., Sarnelli, G., & Biondi, B. (2018) · Endocrine · doi:10.1007/s12020-017-1367-5 · Cited by 16 · see citing works
Levothyroxine dose adjustment in hypothyroid patients following gastric sleeve surgery
Richou, M., Gilly, O., Taillard, V., Brauwere, D. P. D., Donici, I., & Guedj, A. M. (2020) · Annales d Endocrinologie · doi:10.1016/j.ando.2020.04.011 · Cited by 16 · see citing works
Guzmán-Prado, Y., Vita, R., & Samson, O. (2021) · Journal of General Internal Medicine · doi:10.1007/s11606-020-06403-y · Cited by 15 · see citing works
Self-citationLiquid levothyroxine and its potential use
Formenti, A. M., Daffini, L., Pirola, I., Gandossi, E., Cristiano, A., & Cappelli, C. (2015) · HORMONES · doi:10.14310/horm.2002.1579 · Cited by 15 · see citing works
Thyroid hormones—From Crystal Packing to Activity to Reactivity
Schweizer, U., & Steegborn, C. (2015) · Angewandte Chemie International Edition · doi:10.1002/anie.201506919 · Cited by 14 · see citing works
L-T4 therapy in the presence of pharmacological interferents
Benvenga, S. (2020) · Frontiers in Endocrinology · doi:10.3389/fendo.2020.607446 · Cited by 13 · see citing works
Self-citationGietka-Czernel, M., Hubalewska-Dydejczyk, A., Kos-Kudła, B., Lewiński, A., Ruchała, M., Syrenicz, A., & Zgliczyński, W. (2020) · Endokrynologia Polska · doi:10.5603/ep.a2020.0065 · Cited by 13 · see citing works
Ducharme, M., Scarsi, C., Bettazzi, E., Mautone, G., Lewis, Y., & Celi, F. S. (2022) · Thyroid · doi:10.1089/thy.2021.0604 · Cited by 13 · see citing works
Dissolution Profile Consideration in Pharmaceutical Product Development
Mehtani, D., Seth, A., Sharma, P. A., Maheshwari, R., Abed, S. N., Deb, P. K., Chougule, M. B., & Tekade, R. K. (2018) · Elsevier eBooks · doi:10.1016/b978-0-12-814423-7.00009-5 · Cited by 13 · see citing works
Stagi, S., Municchi, G., Ferrari, M., & Wasniewska, M. G. (2022) · Frontiers in Endocrinology · doi:10.3389/fendo.2022.859487 · Cited by 14 · see citing works
Liquid levothyroxine formulations in patients taking drugs interfering with L-T4 absorption
Gatta, E., Bambini, F., Buoso, C., Gava, M., Maltese, V., Anelli, V., Delbarba, A., Pirola, I., & Cappelli, C. (2022) · Frontiers in Endocrinology · doi:10.3389/fendo.2022.1080108 · Cited by 13 · see citing works
Morini, E., Catalano, A., Lasco, A., Morabito, N., & Benvenga, S. (2019) · Endocrine · doi:10.1007/s12020-019-01908-x · Cited by 12 · see citing works
Self-citationMorini, E., Catalano, A., Lasco, A., Morabito, N., & Benvenga, S. (2019) · Endocrine · doi:10.1007/s12020-018-1798-7 · Cited by 12 · see citing works
Self-citationTrimboli, P., & Mouly, S. J. (2022) · Journal of Clinical Medicine · doi:10.3390/jcm11123479 · Cited by 11 · see citing works
Tzifi, F., Iliadi, A. C., Voutetakis, A., Platis, D., Girginoudis, P., & Kanaka‐Gantenbein, C. (2021) · Journal of Pediatric Endocrinology and Metabolism · doi:10.1515/jpem-2021-0458 · Cited by 9 · see citing works
Intestinal absorption and buccal absorption of liquid levothyroxine
Benvenga, S., & Di Bari, F. (2017) · Endocrine · doi:10.1007/s12020-017-1250-4 · Cited by 8 · see citing works
Self-citationYoshida, T., Nakayama, A., Tamura, A., Higuchi, S., Sakuma, I., Nagano, H., Felizola, S. J. A., Hashimoto, N., Takemoto, M., Tatsuno, I., et al. (2019) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/clinem/dgz073 · Cited by 8 · see citing works
The impact of proton pump inhibitors on levothyroxine absorption: The good, the bad and the ugly
Guzmán-Prado, Y., Vita, R., & Samson, O. (2020) · European Journal of Internal Medicine · doi:10.1016/j.ejim.2020.02.020 · Cited by 7 · see citing works
Self-citationRuchała, M., Bossowski, A. T., Brzózka, M. M., Gietka‐Czernel, M., Hubalewska–Dydejczyk, A., Kos‐Kudła, B., Lewiñski, A., Syrenicz, A., & Zgliczyński, W. (2022) · Endokrynologia Polska · doi:10.5603/ep.a2022.0078 · Cited by 7 · see citing works
Jonklaas, J. (2019) · Springer eBooks · doi:10.1007/978-3-319-72102-6_19 · Cited by 6 · see citing works
Ferrari, S. M., Patrizio, A., Mazzi, V., Ragusa, F., Botrini, C., Elia, G., Balestri, E., Barozzi, E., Rugani, L., Bracchitta, F., et al. (2024) · Frontiers in Endocrinology · doi:10.3389/fendo.2024.1386510 · Cited by 5 · see citing works
Self-citationThyroid hormone replacement therapy in dialysis/renal insufficiency patients
Zhao, X., Liu, F., Yuan, S., Wang, F., Li, C., Guo, C., & Zhao, J. (2025) · Frontiers in Endocrinology · doi:10.3389/fendo.2025.1540802 · Cited by 5 · see citing works
Liquid L-T4 therapy in hypothyroid patients with gastric diseases, an observational study
Fallahi, P., Ragusa, F., Patrizio, A., Mazzi, V., Botrini, C., Elia, G., Balestri, E., Barozzi, E., Rugani, L., Palmisano, E., et al. (2024) · Frontiers in Endocrinology · doi:10.3389/fendo.2024.1386629 · Cited by 4 · see citing works
Self-citationLevothyroxine personalized treatment: is it still a dream?
Cappelli, C., Gatta, E., & Ippolito, S. (2024) · Frontiers in Endocrinology · doi:10.3389/fendo.2023.1334292 · Cited by 4 · see citing works
Yue, C. S., Scarsi, C., Bettazzi, E., Mautone, G., Celi, F. S., & Ducharme, M. P. (2024) · Endocrine Practice · doi:10.1016/j.eprac.2024.03.388 · Cited by 4 · see citing works
Evaluating Thyroid Function Tests in Patients with Kidney Disease
Praw, S. S., Way, J. S. A., & Weiss, R. (2019) · Springer eBooks · doi:10.1007/978-3-319-97765-2_7 · Cited by 4 · see citing works
Schilddrüsenhormone – von der Kristallstruktur über die Aktivität zur Reaktivität
Schweizer, U., & Steegborn, C. (2015) · Angewandte Chemie · doi:10.1002/ange.201506919 · Cited by 3 · see citing works
Comparative Bioavailability of a Novel Solution and a Tablet Formulation of Levothyroxine
Vandse, S., Psarrakis, Y., Washington, K., & Baron, M. A. (2023) · Clinical Pharmacology in Drug Development · doi:10.1002/cpdd.1233 · Cited by 3 · see citing works
Hao, D., Tian, L., He, H., Zhu, C., Guo, L., Zhang, K., & Zhang, J. (2023) · European Journal of Translational Myology · doi:10.4081/ejtm.2023.11582 · Cited by 3 · see citing works
Marina, M., Maglietta, G., Filpo, G. D., Aloe, R., Gnocchi, C., Iezzi, E., Caminiti, C., & Ceresini, G. (2022) · Endocrine · doi:10.1007/s12020-022-03110-y · Cited by 3 · see citing works
Gatta, E., Maltese, V., Cavadini, M., Anelli, V., Bambini, F., Buoso, C., Facondo, P., Pirola, I., Delbarba, A., & Cappelli, C. (2023) · Endocrine Practice · doi:10.1016/j.eprac.2023.08.009 · Cited by 2 · see citing works
Persistent Hypothyroid Symptoms Despite Adequate Thyroid Hormone Replacement
McDermott, M. T. (2019) · Springer eBooks · doi:10.1007/978-3-030-22720-3_23 · Cited by 2 · see citing works
Awasthi, A., Chakraborty, P. P., Agrawal, N., Sinha, A., Pandey, A. K., & Maiti, A. (2023) · Thyroid Research · doi:10.1186/s13044-023-00156-6 · Cited by 3 · see citing works
Nuevas formulaciones de levotiroxina en el tratamiento del hipotiroidismo
Iglesias, P. (2023) · Endocrinología Diabetes y Nutrición · doi:10.1016/j.endinu.2023.11.001 · Cited by 2 · see citing works
Khoshaba, L., & Patarkatsi, L. (2023) · Case Reports in Endocrinology · doi:10.1155/2023/4252894 · Cited by 2 · see citing works
Drug forms of levothyroxine. Is there room for innovation in hypothyroidism treatment?
Kolpakova, E. A., Voznesenskaya, А. А., Викторовна, Ф. Н., & Troshina, E. A. (2023) · Clinical and experimental thyroidology · doi:10.14341/ket12759 · Cited by 1 · see citing works
Comparison of tablet versus liquid ethanol-free Levothyroxine in thyroidectomised patients
Croce, L., Chytiris, S., Teliti, M., Bertini, J., Pizzuto, L., Molin, M. D., Limiroli, M., Calì, B., Magri, F., & Rotondi, M. (2025) · Endocrine · doi:10.1007/s12020-025-04375-9 · Cited by 1 · see citing works
Baratta, F., Moscucci, F., Bocale, R., Savoia, C., Cocomello, N., Lospinuso, I., Ettorre, E., Desideri, G., & Pontecorvi, A. (2025) · Metabolites · doi:10.3390/metabo15080547 · Cited by 1 · see citing works
Conoscenti, V., Huang, R., Rudisill, D., Fitch, R., Broyles, F. E., Ettleson, M. D., & Bianco, A. C. (2026) · Thyroid · doi:10.1177/10507256261454211 · Cited by 1 · see citing works
Importance of Thyroid Hormone Replacement Therapy in Patients with Medullary Thyroid Cancer
Jonklaas, J. (2016) · Springer eBooks · doi:10.1007/978-3-319-39412-1_13 · Cited by 1 · see citing works
Thyroid Hormone Homeostasis in Weight Loss and Implications for Bariatric Surgery
Sweeney, L. B., Campos, G. M., & Celi, F. S. (2016) · Elsevier eBooks · doi:10.1016/b978-0-12-804011-9.00047-9
Therapy Resistant Hypothyroidism
Topaloğlu, O., & Çakır, B. (2018) · Ankara Medical Journal · doi:10.17098/amj.435289
C’è un problema con la tiroide? Attenzione ai farmaci!
Trimarchi, F., & Ruggeri, R. M. (2020) · L Endocrinologo · doi:10.1007/s40619-020-00719-x
Self-citationEssentials of Thyroid Hormone Treatment in Differentiated Thyroid Cancer
Aydoğan, B. İ., & Gürsoy, A. (2021) · Nuclear Medicine Seminars · doi:10.4274/nts.galenos.2021.0002
Maladies générales, médicaments et fonction thyroïdienne
Balavoine, A.-S. (2022) · Elsevier eBooks · doi:10.1016/b978-2-294-77583-3.00022-8
Deprescribing in Patients of Hypothyroidism Results in Better Health Outcome: A Case Series
Mishra, P., & Bhargava, S. (2023) · Journal of Pharmaceutical Care · doi:10.18502/jpc.v10i4.11589
New formulations of levothyroxine in the treatment of hypothyroidism
Iglesias, P. (2024) · Endocrinología Diabetes y Nutrición (English ed ) · doi:10.1016/j.endien.2024.03.009
Food-Drug Interactions: Navigating the Complex Relationship
Ewis, D. K., & El-Sayed, O. S. (2025) · Nutritional neurosciences · doi:10.1007/978-981-95-1983-5_14
Formulations for the Replacement Therapy of Hypothyroidism: State of the Art and Perspectives
Lugaresi, M., & Fugazzola, L. (2025) · Springer eBooks · doi:10.1007/978-3-032-01700-0_13
Awasthi, A., Chakraborty, P. P., Agrawal, N., Sinha, A., Pandey, A. K., & Maiti, A. (2023) · Figshare · doi:10.6084/m9.figshare.23273466
Farhan, M., Patel, T., Obais, M. A.-H. N., Taslimi, H., Hanif, M., Khalid, K., Qaqour, A., Waisi, J., Khalid, H., Husain, A. H. A. A., et al. (2026) · World Journal of Clinical Cases · doi:10.12998/wjcc.v14.i16.119700
Holley, M., Wilkes, S., Moss, E. D., Maxwell, I., Dew, R., & Razvi, S. (2026) · The Lancet Primary Care · doi:10.1016/j.lanprc.2026.100194
- Authors
- Vita, R., Saraceno, G., Trimarchi, F., & Benvenga, S.
- Affiliations
- University of Messina (IT)
- Corresponding author
- Vita, Roberto
- Venue
- The Journal of Clinical Endocrinology & Metabolism
- Publisher
- The Endocrine Society
- Published
- 2014-12
- Volume
- 99
- Issue
- 12
- Pages
- 4481-4486
- ISSN
- 0021-972X (ISSN-L)
- 1945-7197
- OpenAlex
- W2055123669
- Cited by
- 99
- References
- 28
- Citations by year
- 2026: 3 · 2025: 5 · 2024: 5 · 2023: 10 · 2022: 8 · 2021: 13 · 2020: 9 · 2019: 11 · 2018: 10 · 2017: 10 · 2016: 9 · 2015: 6
- FWCI
- 6.70
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- The Journal of Clinical Endocrinology & Metabolism (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Disorders and Treatments
- Health Sciences › Medicine › Surgery › Thyroid and Parathyroid Surgery
- Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmaceutical Science › Drug Solubulity and Delivery Systems
- Keywords
- levothyroxine, oral solution, tablet formulation, proton pump inhibitors, drug-drug interactions, thyroid hormone replacement, thyroid suppression therapy, serum TSH, thyroid function monitoring, gastric pH, drug formulation switching, antithyroid drugs
- MeSH terms
- Adult, Aged, Drug Interactions, Female, Humans, Intestinal Absorption, Male, Middle Aged, Prospective Studies, Tablets, Thyrotropin, Thyroxine, Cohort Studies, Pharmaceutical Solutions, Proton Pump Inhibitors
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review